EMB-145LR JU-1800 Tire Burst During Takeoff at Ulaanbaatar

Incident Overview and Aircraft Details On November 16, 2021, at 15:35 local time, an Embraer EMB-145LR with registration JU-1800, operated by Aeromongolia LLC, was conducting a scheduled passenger flight from New Ulaanbaatar International Airport to Donoi Airport. The aircraft, manufactured in 2004 and powered by two AE3007A1 engines, was carrying five crew members and 44 passengers. During the takeoff roll, the number 2 main wheel tire burst and ruptured. The aircraft continued its takeoff and landed safely at Donoi Airport at 16:55 local time. ## Damage and Injuries Upon landing, ground personnel at Donoi Airport reported a loud noise from the aircraft's exterior. A subsequent joint inspection by the flight crew and airport technicians confirmed that the left-side number 2 main wheel tire had ruptured, with approximately 30% of the tire tread torn away. The investigation documented damage to the inboard flap, including tears on both the upper and lower surfaces, as well as damage to the front section of the left main landing gear assembly. Additionally, the brake temperature sensor and proximity sensor wiring were found to be damaged. No other damage was reported. All 49 persons on board, including the crew and passengers, were uninjured. ## Investigation and Personnel The Aircraft Accident Investigation Bureau of Mongolia's Ministry of Road and Transport conducted the investigation in accordance with Annex 13 to the Convention on International Civil Aviation and Mongolian civil aviation regulations. The flight commander was a 28-year-old male holding a Commercial Pilot License, with over 4,200 hours of flight experience. The investigation focused on technical factors, including tire history, pressure, tread condition, and storage, as well as flight data and aerodrome conditions. The final report was published on March 1, 2022, with the primary objective of preventing future accidents and incidents.